drivers/net/wireless/mac80211_hwsim.c

   1 /*
   2  * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
   3  * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  */
   9
  10 /*
  11  * TODO:
  12  * - IBSS mode simulation (Beacon transmission with competition for "air time")
  13  * - RX filtering based on filter configuration (data->rx_filter)
  14  */
  15
  16 #include <linux/list.h>
  17 #include <linux/spinlock.h>
  18 #include <net/dst.h>
  19 #include <net/xfrm.h>
  20 #include <net/mac80211.h>
  21 #include <net/ieee80211_radiotap.h>
  22 #include <linux/if_arp.h>
  23 #include <linux/rtnetlink.h>
  24 #include <linux/etherdevice.h>
  25 #include <linux/debugfs.h>
  26
  27 MODULE_AUTHOR("Jouni Malinen");
  28 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
  29 MODULE_LICENSE("GPL");
  30
  31 static int radios = 2;
  32 module_param(radios, int, 0444);
  33 MODULE_PARM_DESC(radios, "Number of simulated radios");
  34
  35 /**
  36  * enum hwsim_regtest - the type of regulatory tests we offer
  37  *
  38  * These are the different values you can use for the regtest
  39  * module parameter. This is useful to help test world roaming
  40  * and the driver regulatory_hint() call and combinations of these.
  41  * If you want to do specific alpha2 regulatory domain tests simply
  42  * use the userspace regulatory request as that will be respected as
  43  * well without the need of this module parameter. This is designed
  44  * only for testing the driver regulatory request, world roaming
  45  * and all possible combinations.
  46  *
  47  * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
  48  *      this is the default value.
  49  * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
  50  *      hint, only one driver regulatory hint will be sent as such the
  51  *      secondary radios are expected to follow.
  52  * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
  53  *      request with all radios reporting the same regulatory domain.
  54  * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
  55  *      different regulatory domains requests. Expected behaviour is for
  56  *      an intersection to occur but each device will still use their
  57  *      respective regulatory requested domains. Subsequent radios will
  58  *      use the resulting intersection.
  59  * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
  60  *      this by using a custom beacon-capable regulatory domain for the first
  61  *      radio. All other device world roam.
  62  * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
  63  *      domain requests. All radios will adhere to this custom world regulatory
  64  *      domain.
  65  * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
  66  *      domain requests. The first radio will adhere to the first custom world
  67  *      regulatory domain, the second one to the second custom world regulatory
  68  *      domain. All other devices will world roam.
  69  * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
  70  *      settings, only the first radio will send a regulatory domain request
  71  *      and use strict settings. The rest of the radios are expected to follow.
  72  * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
  73  *      settings. All radios will adhere to this.
  74  * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
  75  *      domain settings, combined with secondary driver regulatory domain
  76  *      settings. The first radio will get a strict regulatory domain setting
  77  *      using the first driver regulatory request and the second radio will use
  78  *      non-strict settings using the second driver regulatory request. All
  79  *      other devices should follow the intersection created between the
  80  *      first two.
  81  * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
  82  *      at least 6 radios for a complete test. We will test in this order:
  83  *      1 - driver custom world regulatory domain
  84  *      2 - second custom world regulatory domain
  85  *      3 - first driver regulatory domain request
  86  *      4 - second driver regulatory domain request
  87  *      5 - strict regulatory domain settings using the third driver regulatory
  88  *          domain request
  89  *      6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
  90  *                 regulatory requests.
  91  */
  92 enum hwsim_regtest {
  93         HWSIM_REGTEST_DISABLED = 0,
  94         HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
  95         HWSIM_REGTEST_DRIVER_REG_ALL = 2,
  96         HWSIM_REGTEST_DIFF_COUNTRY = 3,
  97         HWSIM_REGTEST_WORLD_ROAM = 4,
  98         HWSIM_REGTEST_CUSTOM_WORLD = 5,
  99         HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
 100         HWSIM_REGTEST_STRICT_FOLLOW = 7,
 101         HWSIM_REGTEST_STRICT_ALL = 8,
 102         HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
 103         HWSIM_REGTEST_ALL = 10,
 104 };
 105
 106 /* Set to one of the HWSIM_REGTEST_* values above */
 107 static int regtest = HWSIM_REGTEST_DISABLED;
 108 module_param(regtest, int, 0444);
 109 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
 110
 111 static const char *hwsim_alpha2s[] = {
 112         "FI",
 113         "AL",
 114         "US",
 115         "DE",
 116         "JP",
 117         "AL",
 118 };
 119
 120 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
 121         .n_reg_rules = 4,
 122         .alpha2 =  "99",
 123         .reg_rules = {
 124                 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
 125                 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
 126                 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
 127                 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
 128         }
 129 };
 130
 131 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
 132         .n_reg_rules = 2,
 133         .alpha2 =  "99",
 134         .reg_rules = {
 135                 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
 136                 REG_RULE(5725-10, 5850+10, 40, 0, 30,
 137                         NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
 138         }
 139 };
 140
 141 struct hwsim_vif_priv {
 142         u32 magic;
 143         u8 bssid[ETH_ALEN];
 144         bool assoc;
 145         u16 aid;
 146 };
 147
 148 #define HWSIM_VIF_MAGIC 0x69537748
 149
 150 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
 151 {
 152         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 153         WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
 154 }
 155
 156 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
 157 {
 158         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 159         vp->magic = HWSIM_VIF_MAGIC;
 160 }
 161
 162 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
 163 {
 164         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 165         vp->magic = 0;
 166 }
 167
 168 struct hwsim_sta_priv {
 169         u32 magic;
 170 };
 171
 172 #define HWSIM_STA_MAGIC 0x6d537748
 173
 174 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
 175 {
 176         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 177         WARN_ON(sp->magic != HWSIM_STA_MAGIC);
 178 }
 179
 180 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
 181 {
 182         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 183         sp->magic = HWSIM_STA_MAGIC;
 184 }
 185
 186 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
 187 {
 188         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 189         sp->magic = 0;
 190 }
 191
 192 static struct class *hwsim_class;
 193
 194 static struct net_device *hwsim_mon; /* global monitor netdev */
 195
 196 #define CHAN2G(_freq)  { \
 197         .band = IEEE80211_BAND_2GHZ, \
 198         .center_freq = (_freq), \
 199         .hw_value = (_freq), \
 200         .max_power = 20, \
 201 }
 202
 203 #define CHAN5G(_freq) { \
 204         .band = IEEE80211_BAND_5GHZ, \
 205         .center_freq = (_freq), \
 206         .hw_value = (_freq), \
 207         .max_power = 20, \
 208 }
 209
 210 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
 211         CHAN2G(2412), /* Channel 1 */
 212         CHAN2G(2417), /* Channel 2 */
 213         CHAN2G(2422), /* Channel 3 */
 214         CHAN2G(2427), /* Channel 4 */
 215         CHAN2G(2432), /* Channel 5 */
 216         CHAN2G(2437), /* Channel 6 */
 217         CHAN2G(2442), /* Channel 7 */
 218         CHAN2G(2447), /* Channel 8 */
 219         CHAN2G(2452), /* Channel 9 */
 220         CHAN2G(2457), /* Channel 10 */
 221         CHAN2G(2462), /* Channel 11 */
 222         CHAN2G(2467), /* Channel 12 */
 223         CHAN2G(2472), /* Channel 13 */
 224         CHAN2G(2484), /* Channel 14 */
 225 };
 226
 227 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
 228         CHAN5G(5180), /* Channel 36 */
 229         CHAN5G(5200), /* Channel 40 */
 230         CHAN5G(5220), /* Channel 44 */
 231         CHAN5G(5240), /* Channel 48 */
 232
 233         CHAN5G(5260), /* Channel 52 */
 234         CHAN5G(5280), /* Channel 56 */
 235         CHAN5G(5300), /* Channel 60 */
 236         CHAN5G(5320), /* Channel 64 */
 237
 238         CHAN5G(5500), /* Channel 100 */
 239         CHAN5G(5520), /* Channel 104 */
 240         CHAN5G(5540), /* Channel 108 */
 241         CHAN5G(5560), /* Channel 112 */
 242         CHAN5G(5580), /* Channel 116 */
 243         CHAN5G(5600), /* Channel 120 */
 244         CHAN5G(5620), /* Channel 124 */
 245         CHAN5G(5640), /* Channel 128 */
 246         CHAN5G(5660), /* Channel 132 */
 247         CHAN5G(5680), /* Channel 136 */
 248         CHAN5G(5700), /* Channel 140 */
 249
 250         CHAN5G(5745), /* Channel 149 */
 251         CHAN5G(5765), /* Channel 153 */
 252         CHAN5G(5785), /* Channel 157 */
 253         CHAN5G(5805), /* Channel 161 */
 254         CHAN5G(5825), /* Channel 165 */
 255 };
 256
 257 static const struct ieee80211_rate hwsim_rates[] = {
 258         { .bitrate = 10 },
 259         { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 260         { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 261         { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 262         { .bitrate = 60 },
 263         { .bitrate = 90 },
 264         { .bitrate = 120 },
 265         { .bitrate = 180 },
 266         { .bitrate = 240 },
 267         { .bitrate = 360 },
 268         { .bitrate = 480 },
 269         { .bitrate = 540 }
 270 };
 271
 272 static spinlock_t hwsim_radio_lock;
 273 static struct list_head hwsim_radios;
 274
 275 struct mac80211_hwsim_data {
 276         struct list_head list;
 277         struct ieee80211_hw *hw;
 278         struct device *dev;
 279         struct ieee80211_supported_band bands[2];
 280         struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
 281         struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
 282         struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
 283
 284         struct ieee80211_channel *channel;
 285         unsigned long beacon_int; /* in jiffies unit */
 286         unsigned int rx_filter;
 287         int started;
 288         struct timer_list beacon_timer;
 289         enum ps_mode {
 290                 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
 291         } ps;
 292         bool ps_poll_pending;
 293         struct dentry *debugfs;
 294         struct dentry *debugfs_ps;
 295
 296         /*
 297          * Only radios in the same group can communicate together (the
 298          * channel has to match too). Each bit represents a group. A
 299          * radio can be in more then one group.
 300          */
 301         u64 group;
 302         struct dentry *debugfs_group;
 303 };
 304
 305
 306 struct hwsim_radiotap_hdr {
 307         struct ieee80211_radiotap_header hdr;
 308         u8 rt_flags;
 309         u8 rt_rate;
 310         __le16 rt_channel;
 311         __le16 rt_chbitmask;
 312 } __attribute__ ((packed));
 313
 314
 315 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
 316                                         struct net_device *dev)
 317 {
 318         /* TODO: allow packet injection */
 319         dev_kfree_skb(skb);
 320         return NETDEV_TX_OK;
 321 }
 322
 323
 324 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
 325                                       struct sk_buff *tx_skb)
 326 {
 327         struct mac80211_hwsim_data *data = hw->priv;
 328         struct sk_buff *skb;
 329         struct hwsim_radiotap_hdr *hdr;
 330         u16 flags;
 331         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
 332         struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
 333
 334         if (!netif_running(hwsim_mon))
 335                 return;
 336
 337         skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
 338         if (skb == NULL)
 339                 return;
 340
 341         hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
 342         hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
 343         hdr->hdr.it_pad = 0;
 344         hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
 345         hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
 346                                           (1 << IEEE80211_RADIOTAP_RATE) |
 347                                           (1 << IEEE80211_RADIOTAP_CHANNEL));
 348         hdr->rt_flags = 0;
 349         hdr->rt_rate = txrate->bitrate / 5;
 350         hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
 351         flags = IEEE80211_CHAN_2GHZ;
 352         if (txrate->flags & IEEE80211_RATE_ERP_G)
 353                 flags |= IEEE80211_CHAN_OFDM;
 354         else
 355                 flags |= IEEE80211_CHAN_CCK;
 356         hdr->rt_chbitmask = cpu_to_le16(flags);
 357
 358         skb->dev = hwsim_mon;
 359         skb_set_mac_header(skb, 0);
 360         skb->ip_summed = CHECKSUM_UNNECESSARY;
 361         skb->pkt_type = PACKET_OTHERHOST;
 362         skb->protocol = htons(ETH_P_802_2);
 363         memset(skb->cb, 0, sizeof(skb->cb));
 364         netif_rx(skb);
 365 }
 366
 367
 368 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
 369                            struct sk_buff *skb)
 370 {
 371         switch (data->ps) {
 372         case PS_DISABLED:
 373                 return true;
 374         case PS_ENABLED:
 375                 return false;
 376         case PS_AUTO_POLL:
 377                 /* TODO: accept (some) Beacons by default and other frames only
 378                  * if pending PS-Poll has been sent */
 379                 return true;
 380         case PS_MANUAL_POLL:
 381                 /* Allow unicast frames to own address if there is a pending
 382                  * PS-Poll */
 383                 if (data->ps_poll_pending &&
 384                     memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
 385                            ETH_ALEN) == 0) {
 386                         data->ps_poll_pending = false;
 387                         return true;
 388                 }
 389                 return false;
 390         }
 391
 392         return true;
 393 }
 394
 395
 396 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 397                                     struct sk_buff *skb)
 398 {
 399         struct mac80211_hwsim_data *data = hw->priv, *data2;
 400         bool ack = false;
 401         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 402         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 403         struct ieee80211_rx_status rx_status;
 404
 405         memset(&rx_status, 0, sizeof(rx_status));
 406         /* TODO: set mactime */
 407         rx_status.freq = data->channel->center_freq;
 408         rx_status.band = data->channel->band;
 409         rx_status.rate_idx = info->control.rates[0].idx;
 410         /* TODO: simulate real signal strength (and optional packet loss) */
 411         rx_status.signal = -50;
 412
 413         if (data->ps != PS_DISABLED)
 414                 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
 415
 416         /* release the skb's source info */
 417         skb_orphan(skb);
 418         skb_dst_drop(skb);
 419         skb->mark = 0;
 420         secpath_reset(skb);
 421         nf_reset(skb);
 422
 423         /* Copy skb to all enabled radios that are on the current frequency */
 424         spin_lock(&hwsim_radio_lock);
 425         list_for_each_entry(data2, &hwsim_radios, list) {
 426                 struct sk_buff *nskb;
 427
 428                 if (data == data2)
 429                         continue;
 430
 431                 if (!data2->started || !hwsim_ps_rx_ok(data2, skb) ||
 432                     !data->channel || !data2->channel ||
 433                     data->channel->center_freq != data2->channel->center_freq ||
 434                     !(data->group & data2->group))
 435                         continue;
 436
 437                 nskb = skb_copy(skb, GFP_ATOMIC);
 438                 if (nskb == NULL)
 439                         continue;
 440
 441                 if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
 442                            ETH_ALEN) == 0)
 443                         ack = true;
 444                 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
 445                 ieee80211_rx_irqsafe(data2->hw, nskb);
 446         }
 447         spin_unlock(&hwsim_radio_lock);
 448
 449         return ack;
 450 }
 451
 452
 453 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 454 {
 455         bool ack;
 456         struct ieee80211_tx_info *txi;
 457
 458         mac80211_hwsim_monitor_rx(hw, skb);
 459
 460         if (skb->len < 10) {
 461                 /* Should not happen; just a sanity check for addr1 use */
 462                 dev_kfree_skb(skb);
 463                 return NETDEV_TX_OK;
 464         }
 465
 466         ack = mac80211_hwsim_tx_frame(hw, skb);
 467
 468         txi = IEEE80211_SKB_CB(skb);
 469
 470         if (txi->control.vif)
 471                 hwsim_check_magic(txi->control.vif);
 472         if (txi->control.sta)
 473                 hwsim_check_sta_magic(txi->control.sta);
 474
 475         ieee80211_tx_info_clear_status(txi);
 476         if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
 477                 txi->flags |= IEEE80211_TX_STAT_ACK;
 478         ieee80211_tx_status_irqsafe(hw, skb);
 479         return NETDEV_TX_OK;
 480 }
 481
 482
 483 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
 484 {
 485         struct mac80211_hwsim_data *data = hw->priv;
 486         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 487         data->started = 1;
 488         return 0;
 489 }
 490
 491
 492 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
 493 {
 494         struct mac80211_hwsim_data *data = hw->priv;
 495         data->started = 0;
 496         del_timer(&data->beacon_timer);
 497         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 498 }
 499
 500
 501 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
 502                                         struct ieee80211_if_init_conf *conf)
 503 {
 504         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
 505                wiphy_name(hw->wiphy), __func__, conf->type,
 506                conf->mac_addr);
 507         hwsim_set_magic(conf->vif);
 508         return 0;
 509 }
 510
 511
 512 static void mac80211_hwsim_remove_interface(
 513         struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
 514 {
 515         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
 516                wiphy_name(hw->wiphy), __func__, conf->type,
 517                conf->mac_addr);
 518         hwsim_check_magic(conf->vif);
 519         hwsim_clear_magic(conf->vif);
 520 }
 521
 522
 523 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
 524                                      struct ieee80211_vif *vif)
 525 {
 526         struct ieee80211_hw *hw = arg;
 527         struct sk_buff *skb;
 528         struct ieee80211_tx_info *info;
 529
 530         hwsim_check_magic(vif);
 531
 532         if (vif->type != NL80211_IFTYPE_AP &&
 533             vif->type != NL80211_IFTYPE_MESH_POINT)
 534                 return;
 535
 536         skb = ieee80211_beacon_get(hw, vif);
 537         if (skb == NULL)
 538                 return;
 539         info = IEEE80211_SKB_CB(skb);
 540
 541         mac80211_hwsim_monitor_rx(hw, skb);
 542         mac80211_hwsim_tx_frame(hw, skb);
 543         dev_kfree_skb(skb);
 544 }
 545
 546
 547 static void mac80211_hwsim_beacon(unsigned long arg)
 548 {
 549         struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
 550         struct mac80211_hwsim_data *data = hw->priv;
 551
 552         if (!data->started)
 553                 return;
 554
 555         ieee80211_iterate_active_interfaces_atomic(
 556                 hw, mac80211_hwsim_beacon_tx, hw);
 557
 558         data->beacon_timer.expires = jiffies + data->beacon_int;
 559         add_timer(&data->beacon_timer);
 560 }
 561
 562
 563 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
 564 {
 565         struct mac80211_hwsim_data *data = hw->priv;
 566         struct ieee80211_conf *conf = &hw->conf;
 567
 568         printk(KERN_DEBUG "%s:%s (freq=%d idle=%d ps=%d)\n",
 569                wiphy_name(hw->wiphy), __func__,
 570                conf->channel->center_freq,
 571                !!(conf->flags & IEEE80211_CONF_IDLE),
 572                !!(conf->flags & IEEE80211_CONF_PS));
 573
 574         data->channel = conf->channel;
 575         if (!data->started || !data->beacon_int)
 576                 del_timer(&data->beacon_timer);
 577         else
 578                 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
 579
 580         return 0;
 581 }
 582
 583
 584 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
 585                                             unsigned int changed_flags,
 586                                             unsigned int *total_flags,u64 multicast)
 587 {
 588         struct mac80211_hwsim_data *data = hw->priv;
 589
 590         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 591
 592         data->rx_filter = 0;
 593         if (*total_flags & FIF_PROMISC_IN_BSS)
 594                 data->rx_filter |= FIF_PROMISC_IN_BSS;
 595         if (*total_flags & FIF_ALLMULTI)
 596                 data->rx_filter |= FIF_ALLMULTI;
 597
 598         *total_flags = data->rx_filter;
 599 }
 600
 601 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 602                                             struct ieee80211_vif *vif,
 603                                             struct ieee80211_bss_conf *info,
 604                                             u32 changed)
 605 {
 606         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 607         struct mac80211_hwsim_data *data = hw->priv;
 608
 609         hwsim_check_magic(vif);
 610
 611         printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
 612                wiphy_name(hw->wiphy), __func__, changed);
 613
 614         if (changed & BSS_CHANGED_BSSID) {
 615                 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
 616                        wiphy_name(hw->wiphy), __func__,
 617                        info->bssid);
 618                 memcpy(vp->bssid, info->bssid, ETH_ALEN);
 619         }
 620
 621         if (changed & BSS_CHANGED_ASSOC) {
 622                 printk(KERN_DEBUG "  %s: ASSOC: assoc=%d aid=%d\n",
 623                        wiphy_name(hw->wiphy), info->assoc, info->aid);
 624                 vp->assoc = info->assoc;
 625                 vp->aid = info->aid;
 626         }
 627
 628         if (changed & BSS_CHANGED_BEACON_INT) {
 629                 printk(KERN_DEBUG "  %s: BCNINT: %d\n",
 630                        wiphy_name(hw->wiphy), info->beacon_int);
 631                 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
 632                 if (WARN_ON(!data->beacon_int))
 633                         data->beacon_int = 1;
 634         }
 635
 636         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 637                 printk(KERN_DEBUG "  %s: ERP_CTS_PROT: %d\n",
 638                        wiphy_name(hw->wiphy), info->use_cts_prot);
 639         }
 640
 641         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 642                 printk(KERN_DEBUG "  %s: ERP_PREAMBLE: %d\n",
 643                        wiphy_name(hw->wiphy), info->use_short_preamble);
 644         }
 645
 646         if (changed & BSS_CHANGED_ERP_SLOT) {
 647                 printk(KERN_DEBUG "  %s: ERP_SLOT: %d\n",
 648                        wiphy_name(hw->wiphy), info->use_short_slot);
 649         }
 650
 651         if (changed & BSS_CHANGED_HT) {
 652                 printk(KERN_DEBUG "  %s: HT: op_mode=0x%x\n",
 653                        wiphy_name(hw->wiphy),
 654                        info->ht_operation_mode);
 655         }
 656
 657         if (changed & BSS_CHANGED_BASIC_RATES) {
 658                 printk(KERN_DEBUG "  %s: BASIC_RATES: 0x%llx\n",
 659                        wiphy_name(hw->wiphy),
 660                        (unsigned long long) info->basic_rates);
 661         }
 662 }
 663
 664 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
 665                                       struct ieee80211_vif *vif,
 666                                       enum sta_notify_cmd cmd,
 667                                       struct ieee80211_sta *sta)
 668 {
 669         hwsim_check_magic(vif);
 670         switch (cmd) {
 671         case STA_NOTIFY_ADD:
 672                 hwsim_set_sta_magic(sta);
 673                 break;
 674         case STA_NOTIFY_REMOVE:
 675                 hwsim_clear_sta_magic(sta);
 676                 break;
 677         case STA_NOTIFY_SLEEP:
 678         case STA_NOTIFY_AWAKE:
 679                 /* TODO: make good use of these flags */
 680                 break;
 681         }
 682 }
 683
 684 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
 685                                   struct ieee80211_sta *sta,
 686                                   bool set)
 687 {
 688         hwsim_check_sta_magic(sta);
 689         return 0;
 690 }
 691
 692 static int mac80211_hwsim_conf_tx(
 693         struct ieee80211_hw *hw, u16 queue,
 694         const struct ieee80211_tx_queue_params *params)
 695 {
 696         printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
 697                "aifs=%d)\n",
 698                wiphy_name(hw->wiphy), __func__, queue,
 699                params->txop, params->cw_min, params->cw_max, params->aifs);
 700         return 0;
 701 }
 702
 703 #ifdef CONFIG_NL80211_TESTMODE
 704 /*
 705  * This section contains example code for using netlink
 706  * attributes with the testmode command in nl80211.
 707  */
 708
 709 /* These enums need to be kept in sync with userspace */
 710 enum hwsim_testmode_attr {
 711         __HWSIM_TM_ATTR_INVALID = 0,
 712         HWSIM_TM_ATTR_CMD       = 1,
 713         HWSIM_TM_ATTR_PS        = 2,
 714
 715         /* keep last */
 716         __HWSIM_TM_ATTR_AFTER_LAST,
 717         HWSIM_TM_ATTR_MAX       = __HWSIM_TM_ATTR_AFTER_LAST - 1
 718 };
 719
 720 enum hwsim_testmode_cmd {
 721         HWSIM_TM_CMD_SET_PS             = 0,
 722         HWSIM_TM_CMD_GET_PS             = 1,
 723 };
 724
 725 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
 726         [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
 727         [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
 728 };
 729
 730 static int hwsim_fops_ps_write(void *dat, u64 val);
 731
 732 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
 733                                        void *data, int len)
 734 {
 735         struct mac80211_hwsim_data *hwsim = hw->priv;
 736         struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
 737         struct sk_buff *skb;
 738         int err, ps;
 739
 740         err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
 741                         hwsim_testmode_policy);
 742         if (err)
 743                 return err;
 744
 745         if (!tb[HWSIM_TM_ATTR_CMD])
 746                 return -EINVAL;
 747
 748         switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
 749         case HWSIM_TM_CMD_SET_PS:
 750                 if (!tb[HWSIM_TM_ATTR_PS])
 751                         return -EINVAL;
 752                 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
 753                 return hwsim_fops_ps_write(hwsim, ps);
 754         case HWSIM_TM_CMD_GET_PS:
 755                 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
 756                                                 nla_total_size(sizeof(u32)));
 757                 if (!skb)
 758                         return -ENOMEM;
 759                 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
 760                 return cfg80211_testmode_reply(skb);
 761         default:
 762                 return -EOPNOTSUPP;
 763         }
 764
 765  nla_put_failure:
 766         kfree_skb(skb);
 767         return -ENOBUFS;
 768 }
 769 #endif
 770
 771 static const struct ieee80211_ops mac80211_hwsim_ops =
 772 {
 773         .tx = mac80211_hwsim_tx,
 774         .start = mac80211_hwsim_start,
 775         .stop = mac80211_hwsim_stop,
 776         .add_interface = mac80211_hwsim_add_interface,
 777         .remove_interface = mac80211_hwsim_remove_interface,
 778         .config = mac80211_hwsim_config,
 779         .configure_filter = mac80211_hwsim_configure_filter,
 780         .bss_info_changed = mac80211_hwsim_bss_info_changed,
 781         .sta_notify = mac80211_hwsim_sta_notify,
 782         .set_tim = mac80211_hwsim_set_tim,
 783         .conf_tx = mac80211_hwsim_conf_tx,
 784         CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
 785 };
 786
 787
 788 static void mac80211_hwsim_free(void)
 789 {
 790         struct list_head tmplist, *i, *tmp;
 791         struct mac80211_hwsim_data *data, *tmpdata;
 792
 793         INIT_LIST_HEAD(&tmplist);
 794
 795         spin_lock_bh(&hwsim_radio_lock);
 796         list_for_each_safe(i, tmp, &hwsim_radios)
 797                 list_move(i, &tmplist);
 798         spin_unlock_bh(&hwsim_radio_lock);
 799
 800         list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
 801                 debugfs_remove(data->debugfs_group);
 802                 debugfs_remove(data->debugfs_ps);
 803                 debugfs_remove(data->debugfs);
 804                 ieee80211_unregister_hw(data->hw);
 805                 device_unregister(data->dev);
 806                 ieee80211_free_hw(data->hw);
 807         }
 808         class_destroy(hwsim_class);
 809 }
 810
 811
 812 static struct device_driver mac80211_hwsim_driver = {
 813         .name = "mac80211_hwsim"
 814 };
 815
 816 static const struct net_device_ops hwsim_netdev_ops = {
 817         .ndo_start_xmit         = hwsim_mon_xmit,
 818         .ndo_change_mtu         = eth_change_mtu,
 819         .ndo_set_mac_address    = eth_mac_addr,
 820         .ndo_validate_addr      = eth_validate_addr,
 821 };
 822
 823 static void hwsim_mon_setup(struct net_device *dev)
 824 {
 825         dev->netdev_ops = &hwsim_netdev_ops;
 826         dev->destructor = free_netdev;
 827         ether_setup(dev);
 828         dev->tx_queue_len = 0;
 829         dev->type = ARPHRD_IEEE80211_RADIOTAP;
 830         memset(dev->dev_addr, 0, ETH_ALEN);
 831         dev->dev_addr[0] = 0x12;
 832 }
 833
 834
 835 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
 836 {
 837         struct mac80211_hwsim_data *data = dat;
 838         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 839         struct sk_buff *skb;
 840         struct ieee80211_pspoll *pspoll;
 841
 842         if (!vp->assoc)
 843                 return;
 844
 845         printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
 846                wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
 847
 848         skb = dev_alloc_skb(sizeof(*pspoll));
 849         if (!skb)
 850                 return;
 851         pspoll = (void *) skb_put(skb, sizeof(*pspoll));
 852         pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
 853                                             IEEE80211_STYPE_PSPOLL |
 854                                             IEEE80211_FCTL_PM);
 855         pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
 856         memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
 857         memcpy(pspoll->ta, mac, ETH_ALEN);
 858         if (!mac80211_hwsim_tx_frame(data->hw, skb))
 859                 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
 860         dev_kfree_skb(skb);
 861 }
 862
 863
 864 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
 865                                 struct ieee80211_vif *vif, int ps)
 866 {
 867         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 868         struct sk_buff *skb;
 869         struct ieee80211_hdr *hdr;
 870
 871         if (!vp->assoc)
 872                 return;
 873
 874         printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
 875                wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
 876
 877         skb = dev_alloc_skb(sizeof(*hdr));
 878         if (!skb)
 879                 return;
 880         hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
 881         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 882                                          IEEE80211_STYPE_NULLFUNC |
 883                                          (ps ? IEEE80211_FCTL_PM : 0));
 884         hdr->duration_id = cpu_to_le16(0);
 885         memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
 886         memcpy(hdr->addr2, mac, ETH_ALEN);
 887         memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
 888         if (!mac80211_hwsim_tx_frame(data->hw, skb))
 889                 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
 890         dev_kfree_skb(skb);
 891 }
 892
 893
 894 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
 895                                    struct ieee80211_vif *vif)
 896 {
 897         struct mac80211_hwsim_data *data = dat;
 898         hwsim_send_nullfunc(data, mac, vif, 1);
 899 }
 900
 901
 902 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
 903                                       struct ieee80211_vif *vif)
 904 {
 905         struct mac80211_hwsim_data *data = dat;
 906         hwsim_send_nullfunc(data, mac, vif, 0);
 907 }
 908
 909
 910 static int hwsim_fops_ps_read(void *dat, u64 *val)
 911 {
 912         struct mac80211_hwsim_data *data = dat;
 913         *val = data->ps;
 914         return 0;
 915 }
 916
 917 static int hwsim_fops_ps_write(void *dat, u64 val)
 918 {
 919         struct mac80211_hwsim_data *data = dat;
 920         enum ps_mode old_ps;
 921
 922         if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
 923             val != PS_MANUAL_POLL)
 924                 return -EINVAL;
 925
 926         old_ps = data->ps;
 927         data->ps = val;
 928
 929         if (val == PS_MANUAL_POLL) {
 930                 ieee80211_iterate_active_interfaces(data->hw,
 931                                                     hwsim_send_ps_poll, data);
 932                 data->ps_poll_pending = true;
 933         } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
 934                 ieee80211_iterate_active_interfaces(data->hw,
 935                                                     hwsim_send_nullfunc_ps,
 936                                                     data);
 937         } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
 938                 ieee80211_iterate_active_interfaces(data->hw,
 939                                                     hwsim_send_nullfunc_no_ps,
 940                                                     data);
 941         }
 942
 943         return 0;
 944 }
 945
 946 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
 947                         "%llu\n");
 948
 949
 950 static int hwsim_fops_group_read(void *dat, u64 *val)
 951 {
 952         struct mac80211_hwsim_data *data = dat;
 953         *val = data->group;
 954         return 0;
 955 }
 956
 957 static int hwsim_fops_group_write(void *dat, u64 val)
 958 {
 959         struct mac80211_hwsim_data *data = dat;
 960         data->group = val;
 961         return 0;
 962 }
 963
 964 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
 965                         hwsim_fops_group_read, hwsim_fops_group_write,
 966                         "%llx\n");
 967
 968 static int __init init_mac80211_hwsim(void)
 969 {
 970         int i, err = 0;
 971         u8 addr[ETH_ALEN];
 972         struct mac80211_hwsim_data *data;
 973         struct ieee80211_hw *hw;
 974         enum ieee80211_band band;
 975
 976         if (radios < 1 || radios > 100)
 977                 return -EINVAL;
 978
 979         spin_lock_init(&hwsim_radio_lock);
 980         INIT_LIST_HEAD(&hwsim_radios);
 981
 982         hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
 983         if (IS_ERR(hwsim_class))
 984                 return PTR_ERR(hwsim_class);
 985
 986         memset(addr, 0, ETH_ALEN);
 987         addr[0] = 0x02;
 988
 989         for (i = 0; i < radios; i++) {
 990                 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
 991                        i);
 992                 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
 993                 if (!hw) {
 994                         printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
 995                                "failed\n");
 996                         err = -ENOMEM;
 997                         goto failed;
 998                 }
 999                 data = hw->priv;
1000                 data->hw = hw;
1001
1002                 data->dev = device_create(hwsim_class, NULL, 0, hw,
1003                                           "hwsim%d", i);
1004                 if (IS_ERR(data->dev)) {
1005                         printk(KERN_DEBUG
1006                                "mac80211_hwsim: device_create "
1007                                "failed (%ld)\n", PTR_ERR(data->dev));
1008                         err = -ENOMEM;
1009                         goto failed_drvdata;
1010                 }
1011                 data->dev->driver = &mac80211_hwsim_driver;
1012
1013                 SET_IEEE80211_DEV(hw, data->dev);
1014                 addr[3] = i >> 8;
1015                 addr[4] = i;
1016                 SET_IEEE80211_PERM_ADDR(hw, addr);
1017
1018                 hw->channel_change_time = 1;
1019                 hw->queues = 4;
1020                 hw->wiphy->interface_modes =
1021                         BIT(NL80211_IFTYPE_STATION) |
1022                         BIT(NL80211_IFTYPE_AP) |
1023                         BIT(NL80211_IFTYPE_MESH_POINT);
1024
1025                 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1026                             IEEE80211_HW_SIGNAL_DBM;
1027
1028                 /* ask mac80211 to reserve space for magic */
1029                 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1030                 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1031
1032                 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1033                         sizeof(hwsim_channels_2ghz));
1034                 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1035                         sizeof(hwsim_channels_5ghz));
1036                 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1037
1038                 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1039                         struct ieee80211_supported_band *sband = &data->bands[band];
1040                         switch (band) {
1041                         case IEEE80211_BAND_2GHZ:
1042                                 sband->channels = data->channels_2ghz;
1043                                 sband->n_channels =
1044                                         ARRAY_SIZE(hwsim_channels_2ghz);
1045                                 break;
1046                         case IEEE80211_BAND_5GHZ:
1047                                 sband->channels = data->channels_5ghz;
1048                                 sband->n_channels =
1049                                         ARRAY_SIZE(hwsim_channels_5ghz);
1050                                 break;
1051                         default:
1052                                 break;
1053                         }
1054
1055                         sband->bitrates = data->rates;
1056                         sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1057
1058                         sband->ht_cap.ht_supported = true;
1059                         sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1060                                 IEEE80211_HT_CAP_GRN_FLD |
1061                                 IEEE80211_HT_CAP_SGI_40 |
1062                                 IEEE80211_HT_CAP_DSSSCCK40;
1063                         sband->ht_cap.ampdu_factor = 0x3;
1064                         sband->ht_cap.ampdu_density = 0x6;
1065                         memset(&sband->ht_cap.mcs, 0,
1066                                sizeof(sband->ht_cap.mcs));
1067                         sband->ht_cap.mcs.rx_mask[0] = 0xff;
1068                         sband->ht_cap.mcs.rx_mask[1] = 0xff;
1069                         sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1070
1071                         hw->wiphy->bands[band] = sband;
1072                 }
1073                 /* By default all radios are belonging to the first group */
1074                 data->group = 1;
1075
1076                 /* Work to be done prior to ieee80211_register_hw() */
1077                 switch (regtest) {
1078                 case HWSIM_REGTEST_DISABLED:
1079                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1080                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1081                 case HWSIM_REGTEST_DIFF_COUNTRY:
1082                         /*
1083                          * Nothing to be done for driver regulatory domain
1084                          * hints prior to ieee80211_register_hw()
1085                          */
1086                         break;
1087                 case HWSIM_REGTEST_WORLD_ROAM:
1088                         if (i == 0) {
1089                                 hw->wiphy->custom_regulatory = true;
1090                                 wiphy_apply_custom_regulatory(hw->wiphy,
1091                                         &hwsim_world_regdom_custom_01);
1092                         }
1093                         break;
1094                 case HWSIM_REGTEST_CUSTOM_WORLD:
1095                         hw->wiphy->custom_regulatory = true;
1096                         wiphy_apply_custom_regulatory(hw->wiphy,
1097                                 &hwsim_world_regdom_custom_01);
1098                         break;
1099                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1100                         if (i == 0) {
1101                                 hw->wiphy->custom_regulatory = true;
1102                                 wiphy_apply_custom_regulatory(hw->wiphy,
1103                                         &hwsim_world_regdom_custom_01);
1104                         } else if (i == 1) {
1105                                 hw->wiphy->custom_regulatory = true;
1106                                 wiphy_apply_custom_regulatory(hw->wiphy,
1107                                         &hwsim_world_regdom_custom_02);
1108                         }
1109                         break;
1110                 case HWSIM_REGTEST_STRICT_ALL:
1111                         hw->wiphy->strict_regulatory = true;
1112                         break;
1113                 case HWSIM_REGTEST_STRICT_FOLLOW:
1114                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1115                         if (i == 0)
1116                                 hw->wiphy->strict_regulatory = true;
1117                         break;
1118                 case HWSIM_REGTEST_ALL:
1119                         if (i == 0) {
1120                                 hw->wiphy->custom_regulatory = true;
1121                                 wiphy_apply_custom_regulatory(hw->wiphy,
1122                                         &hwsim_world_regdom_custom_01);
1123                         } else if (i == 1) {
1124                                 hw->wiphy->custom_regulatory = true;
1125                                 wiphy_apply_custom_regulatory(hw->wiphy,
1126                                         &hwsim_world_regdom_custom_02);
1127                         } else if (i == 4)
1128                                 hw->wiphy->strict_regulatory = true;
1129                         break;
1130                 default:
1131                         break;
1132                 }
1133
1134                 /* give the regulatory workqueue a chance to run */
1135                 if (regtest)
1136                         schedule_timeout_interruptible(1);
1137                 err = ieee80211_register_hw(hw);
1138                 if (err < 0) {
1139                         printk(KERN_DEBUG "mac80211_hwsim: "
1140                                "ieee80211_register_hw failed (%d)\n", err);
1141                         goto failed_hw;
1142                 }
1143
1144                 /* Work to be done after to ieee80211_register_hw() */
1145                 switch (regtest) {
1146                 case HWSIM_REGTEST_WORLD_ROAM:
1147                 case HWSIM_REGTEST_DISABLED:
1148                         break;
1149                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1150                         if (!i)
1151                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1152                         break;
1153                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1154                 case HWSIM_REGTEST_STRICT_ALL:
1155                         regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1156                         break;
1157                 case HWSIM_REGTEST_DIFF_COUNTRY:
1158                         if (i < ARRAY_SIZE(hwsim_alpha2s))
1159                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1160                         break;
1161                 case HWSIM_REGTEST_CUSTOM_WORLD:
1162                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1163                         /*
1164                          * Nothing to be done for custom world regulatory
1165                          * domains after to ieee80211_register_hw
1166                          */
1167                         break;
1168                 case HWSIM_REGTEST_STRICT_FOLLOW:
1169                         if (i == 0)
1170                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1171                         break;
1172                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1173                         if (i == 0)
1174                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1175                         else if (i == 1)
1176                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1177                         break;
1178                 case HWSIM_REGTEST_ALL:
1179                         if (i == 2)
1180                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1181                         else if (i == 3)
1182                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1183                         else if (i == 4)
1184                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1185                         break;
1186                 default:
1187                         break;
1188                 }
1189
1190                 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1191                        wiphy_name(hw->wiphy),
1192                        hw->wiphy->perm_addr);
1193
1194                 data->debugfs = debugfs_create_dir("hwsim",
1195                                                    hw->wiphy->debugfsdir);
1196                 data->debugfs_ps = debugfs_create_file("ps", 0666,
1197                                                        data->debugfs, data,
1198                                                        &hwsim_fops_ps);
1199                 data->debugfs_group = debugfs_create_file("group", 0666,
1200                                                         data->debugfs, data,
1201                                                         &hwsim_fops_group);
1202
1203                 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1204                             (unsigned long) hw);
1205
1206                 list_add_tail(&data->list, &hwsim_radios);
1207         }
1208
1209         hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1210         if (hwsim_mon == NULL)
1211                 goto failed;
1212
1213         rtnl_lock();
1214
1215         err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1216         if (err < 0)
1217                 goto failed_mon;
1218
1219
1220         err = register_netdevice(hwsim_mon);
1221         if (err < 0)
1222                 goto failed_mon;
1223
1224         rtnl_unlock();
1225
1226         return 0;
1227
1228 failed_mon:
1229         rtnl_unlock();
1230         free_netdev(hwsim_mon);
1231         mac80211_hwsim_free();
1232         return err;
1233
1234 failed_hw:
1235         device_unregister(data->dev);
1236 failed_drvdata:
1237         ieee80211_free_hw(hw);
1238 failed:
1239         mac80211_hwsim_free();
1240         return err;
1241 }
1242
1243
1244 static void __exit exit_mac80211_hwsim(void)
1245 {
1246         printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1247
1248         mac80211_hwsim_free();
1249         unregister_netdev(hwsim_mon);
1250 }
1251
1252
1253 module_init(init_mac80211_hwsim);
1254 module_exit(exit_mac80211_hwsim);